fix typo in readme - Githubissues

This PR fixes the error during deployment:

--2023-01-12 23:10:25--  http://wget/
Resolving wget (wget)... failed: Name or service not known.
wget: unable to resolve host address 'wget'
--2023-01-12 23:10:25--  http://download.virtualbox.org/virtualbox/rpm/rhel/virtualbox.repo
Resolving download.virtualbox.org (download.virtualbox.org)... 104.111.216.80
Connecting to download.virtualbox.org (download.virtualbox.org)|104.111.216.80|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 259 [text/plain]
Saving to: '/etc/yum.repos.d/virtualbox.repo'

/etc/yum.repos.d/virtualbox.repo                              100%[============================================================>]     259  --.-KB/s    in 0s

2023-01-12 23:10:26 (55.8 MB/s) - '/etc/yum.repos.d/virtualbox.repo' saved [259/259]

FINISHED --2023-01-12 23:10:26--
Total wall clock time: 0.7s
Downloaded: 1 files, 259 in 0s (55.8 MB/s)

There are also some end-line spaces that my text editor didn't like and removed. :-)

rdbreak / rhce8env

fix typo in readme #29